the ballast is a high performance fast mover
the blue bit is the plastic and the white is bit is metal
ive left it and the light satyin blue
oliwog Reviewed by oliwog on . URGENT HPS LIGHTING HELP NEEDED errm i dont quit know wot to do. so i jus got me a 600 watt hps lamp to go in with me grow know ive connected the ballast to the lamp but i have an earth wire that runs from the reflector part but has nowhere to go on the ballast there is only 5 sockets for wires the one earht is connected up right but wot do i do with the other earth???????/ do i even need it?????????? also the bulb i got doesnt seem to fit in very easily i cant actually get it to fit properly in the lamp holder there is no Rating: 5